How to protect your Android device against Stagefright attacks
Stagefright is a media playback engine on Android that supports several media formats by default, features audio and video playback, session management, DRM and more.
It is also a name of a vulnerability, or a series of vulnerabilities that were recently discovered. Since Stagefright is a core Android technology, it is affecting (nearly) all devices running the operating system.
What makes the vulnerability particularly troublesome is that it can be executed passively. This means that devices can be attacked successfully without user input.
Basically, what it does is send a specially prepared MMS (Multimedia Message Service) to devices. Since Android devices are configured by default to download and process these messages automatically, attacks are executed in the background.
The vulnerabilities allow attackers to run code remotely on the device, for instance by executing code, using device sensors or snooping around.
Only devices running Android 2.2 or older are not affected by Stagefright at this point in time.
Since attacks require that MMS are automatically downloaded to the system, disabling that ability seems to be one of the better options to protect a device from attacks.
- Open the Messenger application you are using. I'm using the default Messenger app on a Moto G running Android 5.0.1.
- Open the preferences with a tap on the three dots in the upper right corner and selecting settings from the context menu.
- Scroll down until you find the Multimedia (MMS) messages section.
- Uncheck "auto retrieve".
If you are using a different messaging application, you will need to find out whether it supports the blocking of MMS messages by default as well.
Most should provide you with such an option but some may not. If your texting application does not support the disabling of the feature, you may want to consider switching it to a different one for the time being until the issue is resolved.
This is done in the Android settings under More > Default SMS app. Again, the location of the setting may vary depending on your version of the operating system
Most manufacturers are slow when it comes to delivering patches to end users and it may take a while before the vulnerability is patched on most devices. If you run CyanogenMod, you should receive updates this week as the issue has already been patched.
Thanks for the tip Martin.
It is for these kinds of posts that I follow GHacks.
What’s up with the generic comment, are you a bot?
2G?
Where on the planet is that still in use? I was forced to give up using my RAZRV3 years ago because 2G was phased out by AT&T.
Everywhere 3G has been turned off and you don’t have LTE coverage, and believe me there are many developed countries where this is the case and if it weren’t for 2G you wouldn’t even be able to make a phone call.
Maybe I missed it, but I don’t believe tha term “2G” is in the article. Perhaps you are referring to “AGM G2”??
@Martin
Your website has gone insane.
When I the post button I then saw my comment posted on a different article page. When I opened this article again, it is here.
@Tachy @Martin Brinkmann
” Your website has gone insane. ”
Same here. Has happened several times.
@Tachy,
@Martin P.,
For over two weeks now,
I’ve been seeing “Comments” posted by subscribers appearing in different, unrelated articles.
https://www.ghacks.net/windows-11-update-stuck-fixed-for-good/#comment-4572991
https://www.ghacks.net/windows-11-update-stuck-fixed-for-good/#comment-4572951
For the time being,
it would be better to specify the “article name and URL” at the beginning of the post.
@tachy a lot of non-phone devices with a sim in them rely on 2G, at least here in europe.
Usually things reporting usage or errors/alarms on something remote that does not get day to day inspection in person. They are out there in vast numbers doing important work. Reliable, good range. The low datarate is no problem at all in those cases.
3G is gone or on its last legs everywhere, but this stuff still has too much use to cancel.
Anyhow, interesting that they would put that in. I can see the point if you suspect a hostile 2G environment (amateur eavesdroppers with laptop, ranging up to professional grade MITM fake towers while “strangely” not getting the stronger crypto voip 4G because it is being jammed, and back down to something as old ‘stingray’ devices fallen into the wrong hands).
But does this also mean that they have handled and rolled out a fix for that nasty 4G ‘pwn by broadcast’ problem you reported earlier this year? I had 4G disabled due to that, on the off chance that some of the local criminals would buy some cheap chinese gear, download a working exploit and probe every phone in range all over town in the hope of getting into phones of the police.
>”While most may never be attacked in stingrays, it is still recommended to disable 2G cellular connections, especially since it does not have any downsides.”
The downside would be losing connectivity. I spend a lot of time way out in the countryside where there’s often no service or almost none. My network allows 2G, and I need it sometimes. I have an option on the phone to disable 2G, I may do that when I’m in the city and I have good 5G connectivity, but not out in the country.
I would imagine that the stingray exploits, like most of the bad things in this world, are probably things you will run into in the crowded big cities.
I stopped using it in a mobile (Wi-Fi line) environment, so I’m almost ignorant of the actual situation,
But the recent reality in Japan makes me realize that “the infrastructure of the web is nothing more than a papier-mâché fiction”.
https://www.ghacks.net/2023/08/17/google-chrome-to-enable-https-first-by-default-for-all-users/#comment-4572402
It is already beyond the scope of what an individual can do.
What we should be aware of is the reality that “governments and those in power want to control the world through the Web”, and efforts to counter (resist and prevent) such ambitions are necessary.
Why do you want people to disable the privacy features? Hmmmmm?
Now You: do you plan to keep the Ads privacy features enabled?
I’d like to tell you, but apparently if you make a post critical of Google, you get censored. * [Editor: removed, just try to bring your opinion across without attacking anyone]
@Martin
You website is still psychotic. Comments attach to random stories.
@Martin please do fix the comments, it’s completely insane commenting here! :[
@Martin
The comments are seriously messed up on gHacks now. These comments are mixed with the article at the below URL.
https://www.ghacks.net/2023/08/18/android-how-to-disable-2g-cellular-connections-to-improve-security/
And comments on other articles are from as far back as 2010.
What does this article has anything to do with all the comments on this article? LOL I think this Websuite is ran by ChatGPT. every article is messed up. Some older comments from 2015 shown up in recant articles, LOL
The picture captioned “Clearing the Android Auto’s cache might resolve the issue” is from Apple Carplay ;)
How about other things that matter:
Drop survival?
Screen toughness?
Degree of water and dust protection?